William hochhattsek



W. HGGHHAUSEN. Magneto Electric Machine..

No. 233,515. Patented Oct. 19,1880.

N.P1ERS. FHOTO-LITHOGRAFHER, WASH of the armature, and these may have packingor springs m n may be adjustable, as in aforea magnet that is polarized by an electric cur- UNITED STATES PATENT @irrenVO WILLIAM HOCHHAUSEN, OF NEW YORK, N. Y.

MAGNETO-w-ELECTRICV MACHINE.

SPECIFICATION forming part of Letters Patent No. 233,515, dated October 19, 1880. Application filed January 28, 1878.

To all whom it may concern Be it known that I, WILLIAM HooHHAUsEN, of the city and State of New York, have invented an Improvement i-n llIagneto-Electric Machines, of which the following is a specication.

ll'ly present invention relates to that class of dynamo-electric machines in which the armature is revolved by power between the ends of rent circulating through insulated helices surroundingthe cores, and the same is an improvement upon Letters Patent No. 181,342, gran ted to me August 22, 1876.

I make use of a vessel surrounding the induction-coil and revolving armature, into which vessel water or other liquid is introduced, so that the armature and coils are kept cool by direct contact with the water in which they revolve.

In the drawings, Figure l is a cross-section of the machine. Fig. 2 is a side view, and Fig. 3 is a front elevation.

The electro-magnet c is surrounded with the helices b. The armature c is between the poles of the magnet a, and it is wound longitudinally with the helix-wires d, substantially as in the 'aforesaid patent.

Instead of applying a case above the revolving armature and magnetic poles, I connect headsj' to the poles of the magnet, with sheetmetal or other suitable cases g above and below the armature, and I connect the parts tightly, so as to form a water-tight chamber, into which water is allowed to ow by the pipe h and escape by the pipe h.

In the heads fare the bearings for the shaft glands, so that water will not leak out of the chamber in which the armature revolves. The armature as it revolves dashes the water around in the chamber and causes the heat generated to be absorbed, so that the parts do not become warmed or heated. A

The commutator-connections are through the hollow shaft of the armature from the helix to the cylindrical segments k Z, and the rubbers said patent.

The electric circuit is through the 4bindin gscrew o, thence through the helix b to the spring 4', frame and rubber m, through Z or k and armature-helix, back to the rubber n, frame and spring t, to the binding-screw a. The wires from o and ulead to theplating-bath, as usual, and I remark that said bath may be of any desired character.

"Under certain conditions the anode and cathode in a solution will be charged as a secondary battery by the working' current. This charge would traverse the entire circuit, including the 1nagnet-coils,in opposite direction to the primary current, the moment the latter current is diminished enough in intensity by slackening of speed, falling of a belt, or otherwise to be overpowered by the former. This would reverse the polarity of the machine, and consequently the electrolytic action, reducing where it deposited before. To prevent this occurrence an attachment is provided, which automatically closes a short circuit for the harmless discharge of the secondary current as soon as the latter has become strong enough to partly neutralize the primary current, thereby weakening the magnet and releasing a little armature.

At the ends of the poles b are the screws or pins 3 3, projecting through the head, and there is a soft-iron armature, 1c, upon the end of the spring-plate 4, th at connects tothe plate of the binding-screw u, and there is au adjacent plate, 6, connected with the binding-screw o. When the pins 3 3 are magnetized by induction from the electro-magnet b the keeper fw is attracted and the circuit between the plates et and 6 is broken, but when the magnetism lessens in b the keeper w springs back from 3 and closes the circuit between 4: and 6, short-circuiting any false current from the platin g-bath.

In the helices b b of the electro-magnet the current pulsates, there being a rise and fall of electric tension. This produces an extra or counter current, which, reacting at the commutators, intensifies the spark and tends to rapidly destroy the same. I find practically that this is lessened and the magneto-electric machine rendered more durable and uniform in its action by a metallic shunt-connection from one end of the magnet-helix to the other. This I effect by the helix or rheostat m, that passes from the plate 7 to the plate S. The amount of resistance of this shunt is to be IOO regulated according to the speed of the motor Withwhich such revolving armature is in di- 1o and its electric capacity. rect Contact, substantially as and for the pur- This improvement is available in electroposes set forth.

magneto machines in which morethanone re- Signed by me this 25th dayof January, A.

volving armature and helix are made use of. l D. 1878.

I claim as my invention- WILLIAM HOGHHAUSEN. The combination, withv the revolving arma- Witnesses:

ture and helix in a magneto-electric machine, GEO. T. PINGKNEY,

of a case containing water or similar liquid, CEAS. H. SMITH. 

